Spool



Aug. 30, 1932.

- c. P. PARK 1,874,606

SPOOL Filed Jan. 15, 1951 INVENTOR Patented Aug. 30, 1932 UNITED STATES PATENT OFFICE CARL PALMER PARK, OF MANCHESTER, NEW HAMPSHIRE, ASSIGNOR TO U. S. BOBBIN &

SHUTTLE COMPANY 1929, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND SPOOL Application filed January 15, 1931. Serial No. 508,948.

This invention relates to spools of the type where there is a non-metallic cylindrical barrel having one or more longitudinal passages and metallic heads one on each end of the '5 barrel, each head having passages which register with those in the barrel, the heads being held to the barrel by means of metal tubes which extend through the barrel passages and are spread in such a way as to hold the heads and the barrel firmly together.

It is substantially an improvement on theespecially applicable, the heads are held to There may be a central passage at the axis of the spool through which a spindle may be passed and any number of other parallel passages which may be used in the process of steaming as in the Bray patent and one or more or all of these passages may be lined with holding tubes.

The Bray patent shows three passages with holding tubes and also radial passages for the admission of steam, but his axial passage is not lined.

It is desirable that the outer faces of the heads should be perfectly smooth and that the ends of the tubes should not be upset so as to project beyond these faces, but if the head passages are merely beveled, the holding strength of the upset ends of the tubes is not suificient to allow the spool to stand rough usage.

The principal feature of this invention is, therefore, the particular shape of the passages in the heads.

In the drawing, Fig. 1 is an end elevation of a spool of the construction herein de- 7 scribed.

Fig. 2 is a vertical section of Fig. 1 on line 2-2 as viewed from the right.

Fig. 3 is a vertical section as on the line 83 of Fig. 2 viewed from the direction of the arrow or from the left.

Fig. 4 is a vertical sectional view as on the line H of Fig. 2 viewed from the left.

Fig. 5 is an enlarged vertical sectional detail view showing the position of the parts when assembled and before they are locked in place.

Fig. 6 is an enlarged elevation as of the center of a spool such as shown in Fig. 1.

Fig. 7 is a vertical sectional View similar to Fig. 5 of the position.

parts after they are locked in Fig. 8 is a front elevation of a modified type of spool partly in section.

. In the drawing, B represents a barrel which preferably is of wood or other nonmetallic material through which are the longitudinal assages 1, 2, 8 and 4.

H and are metallic heads disposed on' the ends of the barrel, each head having the passages 11, 12, 13 and 14 which register with those in the barrel and which will be described more minutely.

...W, W are washers through which are the 1 washer passages, 21, 22, 28, 24 which register with head and barrel passages and T T T T 'are holding tubes made of some metal which can be expanded or spread and which does not crystallize, or weaken in this process.

These tubes extend entirely through the barrel and through the washers and into each head a distance sufiicient so that when spread they will exactly fit the head passages par-f ticularly the annular flanges thereof.

Considering one of these head passages indicated by 11 in Figs. 4;, 5, 6 and 7 as typical,

where it is next to the washer and to the barrel at 41 it is cylindrical and of the same diameter as the adjoining barrel passage and in longitudinal extension thereof.

From thence at 42 it spreads radially outward in cone shape towards the outside of the head and thence at as spreads radially 1. The combination in a spool, of a nonmetallic cylindrical barrel having longitudinal passages; with metallic heads disposed on the ends of the barrel, each head having passages which register with those in the barrel, each head passage extending longitudinally from its inner end, and then spreading out about thirty-five degrees in cone shape towards the outer end, thence extending out radially and laterally about ninety degrees, and thence extending longitudinally to its outer end; and holding tubes which extend through the barrel passages and fit the head passages.

2. The combination in a spool, of a non-metallic cylindrical barrel having longitudinal passages; with metallic heads disposed on the ends of the barrel, each head having passages which register withthose in the barrel, each head passage extendinglongitudinally from 1 its inner end, and then spreading out in cone shape towards the outer end, thence extending out radially and laterally, and thence extending longitudinally to its'outer end; and holding tubes which extend through the barrel passages and fit the head passages.

3. The combination in a spool, of a nonmetallic cylindrical barrel having a longitudinal passage; with metallic heads disposed on the ends of the barrel, each head having a passage which registers with that in the barrel, each head passage extending longitudinally fromits inner end and then spreading out in cone shape towards the outer end, thence'extending out radially and laterally, and thence ex'tendin longitudinally to its outer end; and a holding tube which extends through the barrel passage and fits the head passage.

' CARL PALMER PARK. 

